TC Electronics - Chorus/Flanger  [schematic]

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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Crimson
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Post by Crimson »

I was looking for some schematic/guts/layout for this pedal.
Has anyone got something?
Thanks in advantage for your help!


Crim

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Dirk_Hendrik
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Post by Dirk_Hendrik »

Sorry. Plain out of planes.

http://www.dirk-hendrik.com

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Post by rocklander »

should the last "A" be a "B"?

cheers
world's greatest tautologist ...in the world
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Crimson
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Post by Crimson »

rocklander wrote:
should the last "A" be a "B"?

cheers
yes, A & B, they're both on the server
It's quite complex.Any layout/PCB o something like that?

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Post by Bernardduur »

Hmmmm, heard this pedal in action with Monte Montgomery last sunday.............

It has an awesome tone!
'No more....... loud music.......'

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Post by Jarno »

I won one on eBay yesterday evening, can't wait till reaches me (will be a couple of days though, it's in Germany, and banktransactions take ages).
Hello there mr. Bernardduur! Fancy seeing you here, LOL

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Bernardduur
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Post by Bernardduur »

Jarno wrote:I won one on eBay yesterday evening, can't wait till reaches me (will be a couple of days though, it's in Germany, and banktransactions take ages).
Hello there mr. Bernardduur! Fancy seeing you here, LOL

Regards,

Jarno.

haha, I saw the name, I guessed the person........ right!

Welcome!
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Crimson
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Post by Crimson »

So really thanks a lot for the schematic.
Now i wanna try to remove the "strange" bypass system that use TC Elect for a true bypass, and remove also the stereo out and the external bypass...

I'm just now taking a serius look on the circuit: can you explain me what is the scheme on page A in the upper left corner?
The one with "s1-s2-s3" etc etc?

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Post by fosnal1950 »

I would strongly advise not to remove the stereo out but try it " in stereo " this is the mode in which it really blossoms !

Alf

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Post by Tube2stomp »

The link here is not working any more, but I remember seeing the pics before and yup, it's a complex little mofo :slap:
Anyone has a "lite" version schematic for this thing?
I'm sure this pedal packs many extra sub circuits that can be shaved off (by someone who understands them of course) so the "audio" part will be revealed.

Cheers

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Post by Hotrats »

...
Attachments
tcchorusB.jpg
tcchorusA.jpg

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Post by celadine »

Tube2stomp wrote: I'm sure this pedal packs many extra sub circuits that can be shaved off (by someone who understands them of course) so the "audio" part will be revealed.
Its a very elegant design. I don't understand it completely (especially the clock/BBD pin 4/input OTA connection), but I don't see any unecessary parts.

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Post by Whoismarykelly »

I've been trying to figure out a little quirk with this pedal. When its in pitch modulation mode, the sound cuts out and then swells into the effect when you hit the switch to engage the effect. It makes me think the bypass switch is doing more than just bringing the circuit in and out of the path behind the input gain stage. Looking at the schematic I cant really see if thats the case. It looks like the bypass switch just lifts a ground connection. Any thoughts as to why this one mode would have an issue? The chorus mode has no perceivable issue like the pitch modulation mode has.

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